设有如下推理规则 r 1: IF E 1 THEN (100, 0.1) H 1 r 2 : IF E 2 THEN (50, 0.5) H 2 r 3 : IF E 3 THEN (5, 0.05) H 3 且已知 P(H 1 )=0.02, P(H 2 )=0.2, P(H 3 )=0.4 ,请计算当证据 E 1 , E 2 , E 3 存在或不存在时 P(H i | E i ) 或 P(H i | 「 E i ) 的值各是多少 (i=1, 2, 3) ?
【单选题】An activity has an early start date-of the lOth and a late start date of the 19th. The activity also has a duration of 4 days. There are no nonworkdays. From the information given, ()what can be concl...
A.
Total float for the activity is 9 days.
B.
The early finish date ofthe activity is the end ofthe day on the 14th.
C.
The late finish date is the 25th.
D.
The activity can be completed in 2 days ifthe resources devoted to it are doubled.